Integrity Assessment
Non-destructive inspection methods evaluate the sealed status of electronic enclosures or medical packages. Then, vacuum decay leak testing measures the rise in pressure inside a test chamber to detect the presence of microscopic leaks. This method is highly sensitive and can detect leaks that are invisible to the naked eye.
It operates only within the sensitivity limits of the pressure sensors used.
Method Execution
The sealed product is placed in a closely fitting chamber from which a vacuum is drawn to a specific level. For vacuum decay leak testing, the chamber is then isolated, and the pressure is monitored over a set period. If the product leaks, air escapes into the chamber, causing the pressure to rise.
This pressure change is recorded by high-resolution sensors.
Quality Advantage
This approach is faster and more reliable than traditional water immersion bubble testing, which is subjective. Using vacuum decay leak testing ensures that products are tested without being exposed to moisture, preventing damage to sensitive electronics. It can be integrated into automated production lines for one hundred percent inspection of sealed components.
This reduces the risk of field failures.
Industry Standard
Standard test methods like ASTM F2338 define the protocols for conducting these measurements on various packages. This ensures repeatability.
